This name is a synonym of Symphyotrichum cordifolium (L.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 1C83AB7B-12B0-4309-B499-277393AF603A) with original publication details: Ill. Fl. N. U.S. 3 363 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23255-2.
This name was in version 1 of The Plant List, record gcc-21353.